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<h2>CollectionAssert (NUnit 2.4 / 2.5)</h2>
<p>The CollectionAssert class provides a number of methods that are useful 
when examining collections and their contents or for comparing two collections.</p>

<p>The <b>AreEqual</b> overloads succeed if the two collections contain the same objects,
in the same order. <b>AreEquivalent</b> tests whether the collections contain the same
objects, without regard to order.</p>

<p>Beginning with NUnit 2.4.6, these methods may be used on any object that
implements IEnumerable. Prior to 2.4.6, only true collections were supported.

<div class="code" style="width: 38em">
<pre>CollectionAssert.AllItemsAreInstancesOfType( IEnumerable collection,
          Type expectedType );
CollectionAssert.AllItemsAreInstancesOfType( IEnumerable collection,
          Type expectedType, string message );
CollectionAssert.AllItemsAreInstancesOfType( IEnumerable collection,
          Type expectedType, string message, params object[] args );

CollectionAssert.AllItemsAreNotNull( IEnumerable collection );
CollectionAssert.AllItemsAreNotNull( IEnumerable collection,
          string message );
CollectionAssert.AllItemsAreNotNull( IEnumerable collection,
          string message, params object[] args );

CollectionAssert.AllItemsAreUnique( IEnumerable collection );
CollectionAssert.AllItemsAreUnique( IEnumerable collection,
          string message );
CollectionAssert.AllItemsAreUnique( IEnumerable collection,
          string message, params object[] args );

CollectionAssert.AreEqual( IEnumerable expected, IEnumerable actual );
CollectionAssert.AreEqual( IEnumerable expected, IEnumerable actual,
          string message );
CollectionAssert.AreEqual( IEnumerable expected, IEnumerable actual
          string message, params object[] args );

CollectionAssert.AreEquivalent( IEnumerable expected, IEnumerable actual);
CollectionAssert.AreEquivalent( IEnumerable expected, IEnumerable actual,
          string message );
CollectionAssert.AreEquivalent( IEnumerable expected, IEnumerable actual
          string message, params object[] args );

CollectionAssert.AreNotEqual( IEnumerable expected, IEnumerable actual );
CollectionAssert.AreNotEqual( IEnumerable expected, IEnumerable actual,
          string message );
CollectionAssert.AreNotEqual( IEnumerableon expected, IEnumerable actual
          string message, params object[] args );

CollectionAssert.AreNotEquivalent( IEnumerable expected,
          IEnumerable actual );
CollectionAssert.AreNotEquivalent( IEnumerable expected,
          IEnumerable actual, string message );
CollectionAssert.AreNotEquivalent( IEnumerable expected,
          IEnumerable actual, string message, params object[] args );

CollectionAssert.Contains( IEnumerable expected, object actual );
CollectionAssert.Contains( IEnumerable expected, object actual,
          string message );
CollectionAssert.Contains( IEnumerable expected, object actual
          string message, params object[] args );

CollectionAssert.DoesNotContain( IEnumerable expected, object actual );
CollectionAssert.DoesNotContain( IEnumerable expected, object actual,
          string message );
CollectionAssert.DoesNotContain( IEnumerable expected, object actual
          string message, params object[] args );

CollectionAssert.IsSubsetOf( IEnumerable subset, IEnumerable superset );
CollectionAssert.IsSubsetOf( IEnumerable subset, IEnumerable superset,
          string message );
CollectionAssert.IsSubsetOf( IEnumerable subset, IEnumerable superset,
          string message, params object[] args );

CollectionAssert.IsNotSubsetOf( IEnumerable subset, IEnumerable superset);
CollectionAssert.IsNotSubsetOf( IEnumerable subset, IEnumerable superset,
          string message );
CollectionAssert.IsNotSubsetOf( IEnumerable subset, IEnumerable superset,
          string message, params object[] args );

CollectionAssert.IsEmpty( IEnumerable collection );
CollectionAssert.IsEmpty( IEnumerable collection, string message );
CollectionAssert.IsEmpty( IEnumerable collection, string message,
          params object[] args );

CollectionAssert.IsNotEmpty( IEnumerable collection );
CollectionAssert.IsNotEmpty( IEnumerable collection, string message );
CollectionAssert.IsNotEmpty( IEnumerable collection, string message,
          params object[] args );
</pre></div>
		 
<p>The following methods are available beginning with NUnit 2.5

<div class="code" style="width: 38em"><pre>
CollectionAssert.IsOrdered( IEnumerable collection );
CollectionAssert.IsOrdered( IEnumerable collection, string message );
CollectionAssert.IsOrdered( IEnumerable collection, string message,
          params object[] args );
		  
CollectionAssert.IsOrdered( IEnumerable collection, IComparer comparer );
CollectionAssert.IsOrdered( IEnumerable collection, IComparer comparer,
          string message );
CollectionAssert.IsOrdered( IEnumerable collection, IComparer comparer,
          string message, params object[] args );
</pre></div>

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